NX26F080A-3TE-R 데이터 시트보기 (PDF) - NexFlash -> Winbond Electronics

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NX26F080A-3TE-R

8M-BIT AND 16M-BIT SERIAL FLASH MEMORY WITH 2-PIN NXS INTERFACE

NexFlash -> Winbond Electronics 

NX26F080A

NX26F160

Pin Descriptions

Package Types

The NX26F080A and NX26F160 is available in a 24/28-pin

TSOP (Type II) package (Figure 1 and Table 1) or a

removable Serial Flash Module (see NX25Mxxx/NX26Mxxx

Serial Flash Module data sheet for further information).

Power Supply Pins (Vcc and GND)

The NX26F080A and NX26F160 support single power supply

Read, Erase, and Write operations available in 5V and 3V Vcc

versions. Active power requirements are as low as 15 mA for

3V versions with standby current in the 1 µA range.

NXS Serial Interface Pins (SCK and SIO)

The 2-wire NXS (NexFlash Serial) interface includes a

Clock Input pin (SCK) and a single bidirectional I/O pin for

data (SIO). All data to or from the SIO pin is clocked

relative to the rising edge of SCK. The 2-wire NXS serial

interface makes the NX26F080A and NX26F160 an ideal

solution for removable non-volatile storage. A simple edge

connector or cable/connector with four contacts (SCK,

SIO, Vcc, and GND) can support communications with

space efficiency and reliability. The NXS interface can

operate at clock rates up to 16 MHz for 5V versions.

Device Address Pins (A0, A1, A2, A3)

There is no active chip select on the NX26F080A and

NX26F160. Instead, four static device address pins

(A0, A1, A2, and A3) are provided for decoding from one to

16 possible devices (Figure 2). This allows up to 16MB

(using an NX26F080A device) or 32MB (using an NX26F160

device) to be addressed via a single 2-wire NXS interface.

The static address pins (A0-A3) must be tied high or low to

match the device address field (DA3-DA0) in the sector

Read and Erase/Write instruction sequences.

No Connect Pins (N/C)

The NX26F080A and NX26F160 uses only a few signal

pins. As a result, the TSOP package has numerous

no connects (NC) that have no electrical contact to the die.

A0 1

SCK 2

SIO 3

Vcc 4

NC 5

NC 6

NC 9

NC 10

A3 11

A2 12

A1 13

GND 14

28 N/C

27 NC

26 NC

25 NC

24 NC

23 NC

20 NC

19 NC

18 NC

17 NC

16 NC

15 NC

Figure 1. NX26F080A and NX26F160 Pin Assignments

Table 1. Pin Descriptions

A0, A1, A2, A3

SCK

SIO

Vcc

GND

NC

Device Address

Serial Clock

Serial Data I/O

Power Supply

Ground

No Connect

2

NexFlash Technologies, Inc.

PRELIMINARY NXSF006E-0801

08/22/01 ©

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